EP 2924879 A4 20160824 - SAMPLING RATE CONVERSION DEVICE
Title (en)
SAMPLING RATE CONVERSION DEVICE
Title (de)
VORRICHTUNG ZUR ABTASTRATENKONVERTIERUNG
Title (fr)
DISPOSITIF DE CONVERSION DE TAUX D'ÉCHANTILLONNAGE
Publication
Application
Priority
- JP 2012256368 A 20121122
- JP 2013063007 W 20130509
Abstract (en)
[origin: EP2924879A1] A position coordinate difference computing unit (5a to 5c) calculates position coordinate differences between position coordinates of the output digital signals and position coordinates of the input digital signals adjacent to the position coordinates. An FIR coefficient memory (13a to 13c) stores FIR coefficients of an FIR-LPF and outputs FIR coefficients corresponding to position coordinate differences between a fixed number of the output digital signals adjacent to the position coordinates of the output digital signals and the output digital signals. A control unit (11) supplies a group of the FIR coefficients and a group of the input digital signals corresponding to the respective position coordinate differences to the parallel FIR calculator (4) in predetermined order when the position coordinate differences corresponding to two or more different output digital signals are concurrently computed. The parallel FIR calculator (4) performs an FIR-LPF interpolating calculation by using those to obtain the output digital signals.
IPC 8 full level
H03H 17/06 (2006.01)
CPC (source: EP US)
H03H 17/0621 (2013.01 - EP US); H03H 17/0642 (2013.01 - EP US); H04N 19/117 (2014.11 - EP US); H04N 19/132 (2014.11 - EP US); H04N 19/164 (2014.11 - EP US); H04N 19/167 (2014.11 - EP US); H04N 19/182 (2014.11 - EP US); H04N 19/436 (2014.11 - EP US)
Citation (search report)
- [A] US 4953117 A 19900828 - LAGADEC ROGER [JP]
- [A] US 4748578 A 19880531 - LAGADEC ROGER [CH], et al
- [A] US 2003065463 A1 20030403 - LENEZ THIERRY [FR], et al
- [AD] JP H0884048 A 19960326 - SONY CORP
- See also references of WO 2014080649A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2924879 A1 20150930; EP 2924879 A4 20160824; EP 2924879 B1 20170830; BR 112015011570 A2 20170711; BR 112015011570 B1 20211123; JP 2014103639 A 20140605; JP 5573926 B2 20140820; US 10397579 B2 20190827; US 2015304660 A1 20151022; WO 2014080649 A1 20140530
DOCDB simple family (application)
EP 13856624 A 20130509; BR 112015011570 A 20130509; JP 2012256368 A 20121122; JP 2013063007 W 20130509; US 201314439836 A 20130509